The #1 on M Countdown on 2015-11-19 was “4 Walls” by f(x) — win No. 4 for the song and career win No. 14 for f(x) (No. 5 on this show).
“4 Walls” has 4 music show wins in total: 2015-11-05 M Countdown, 2015-11-06 Music Bank, 2015-11-10 The Show, 2015-11-19 M Countdown. f(x) had 4 wins in 2015 up to this date, and this was win No. 5 on M Countdown. The previous week's M Countdown #1 was “4 Walls” by f(x), so the same song held on. The other shows that week went to The Show: “Chained Up” by VIXX; Show Champion: “Chained Up” by VIXX; Music Bank: “Chained Up” by VIXX; Inkigayo: “I” by Taeyeon. Episode data comes from broadcasters' published results (Wikipedia lists, CC BY-SA) and is recounted daily.
| Date | Show | Song · Artist | |
|---|---|---|---|
| 2015-11-17 | The Show | Chained UpVIXX | ★ #1 |
| 2015-11-18 | Show Champion | Chained UpVIXX | ★ #1 |
| 2015-11-19 | M Countdown | 4 Wallsf(x) | ★ #1 |
| 2015-11-20 | Music Bank | Chained UpVIXX | ★ #1 |
| 2015-11-22 | Inkigayo | ITaeyeon | ★ #1 |